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Physics Quiz 5 (25 MCQs)

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1. What is the magnitude of the resultant vector after adding Vector A that has magnitude and direction of 6 m due West and Vector B which has a magnitude and direction of 8 m due South?
2. If you roll a large sheet of paper into a funnel, you can hear the sound better. This process of increasing the loudness of a sound is called _____
3. When you know speed and direction you know
4. On a roller coaster, where is maximum potential energy?
5. The unit m 3 is used to express
6. Solve for x:2x + 3 =7
7. The maximum value of electric field before breakdown occurs and charges begin to flow.
8. A 500-g bottled water fell from a 20-m tall building. Just before hitting the ground, what will be its kinetic energy if air resistance is negligible?
9. What do you call the path of a projectile?
10. According to which law of energy, energy can't be created or destroyed?
11. Which of the following is the displacement of the projectile motion in the horizontal direction?
12. What is a basic property of matter carried by some elementaryparticles that govern how the particles are affected by an electric or magnetic field?
13. Which one of these options is NOT a vector quantity
14. If the Sun all of the sudden vanished/disappeared how long would it take for the Earth's orbit to be affected by this?
15. If velocity of all fluid particles is same all the time then it is called
16. What determines the strength of gravitational attraction between two objects?
17. Widely used in electronic circuits and sometimes are called _____
18. How is the direction of the electric field lines related to the equipotential surface?
19. Which of the following is the gravitational force exerted by the Earth's gravity?
20. Growth of the baby in the uterus is found using_____
21. A spring of spring constant 30.0 N/m is attached to a mass of 1.9 kg; find the period and frequency of vibration for this system.
22. Device that stores energy by having 2 oppositely charged plate.
23. Which is the correct equation for calculating the speed of a wave?
24. A force acts on an area to produce a pressure.Which changes produce the same pressure?
25. When the frequency of a wave increases, what happens to the wavelength?
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